html,body{
    margin: 0px;
    padding: 0px;
    width: 100%;
    height: 100%;
    background: url(/assets/images/login_bg.jpg) no-repeat center;
    background-size: cover;
}
.loginandreg{
    width: 400px;
    height: 310px;
    background-color: #fff;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
}
.logintitle{
    width: 400px;
    height: 60px;
    background: url(/assets/images/login_title.png) no-repeat center;
}